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Question
_____________ states that when final path of a ray of light after any number of reflections and refractions is reversed, the ray retraces its entire path.
_____________ states that when final path of a ray of light after any number of reflections and refractions is reversed, the ray retraces its entire path.
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Solution
The correct option is A Principle of reversibility
Principle of reversibility states that when final path of a ray of light after any number of reflections and refractions is reversed, the ray retraces its entire path or in simple words, light follows exactly the same path if its path of travel is reversed.
Principle of reversibility states that when final path of a ray of light after any number of reflections and refractions is reversed, the ray retraces its entire path or in simple words, light follows exactly the same path if its path of travel is reversed.
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